A pic of All About Eve costar Marlyn Monroe before attending the 1951 Oscars, which honored films released in 1950. Hosted by Fred Astaire, the show happened at the RKO Pantages theatre on March 29, 1951. Joseph L. Mankiewicz‘s All About Eve was nominated for 14 Oscars and won six. Billy Wilder‘s Sunset Boulevard was nominated for 11 Oscars but won only three — Best Screenplay, Best Art Direction-Set Decoration (Black-and-White) and Best Musical Score (Franz Waxman).